grossmann



(No Model.) 2 Sheets-Sheet 1.

V G. GROSS-MANN. MACHINE F OR ULBANING WIRE GAUZE CYLINDERS .OF SAFETYLAMPS.

No. 559,171. Patented-Apr. 28,1896.

ANDREW lGRAHAM PHOTO-LMD.WASI1INGTDN.D C

(No Model.) 2 Sheets-Sheet 2.

G. GROSSMANN; MACHINE FOR CLEANING WIRE GA UZB CYLINDERS OF SAFETYLAMPS..

No. 559,171. Patented Apr. 28, 18-96.

ANDREWJGRAIIAM. vuo'ro-umawnsmunrow [1C UNITED STATES @ATENT O FICE.

eorrrninn GROSSMANN, on DORTMUND, GERMANY.

MACHINE FOR CLEANING WlRE-GAUZE CYLINDERS OF SAFETY-LAMPS.

SPECIFICATION forming part of Letters Patent No. 559,171, dated April28, 1896.

Application filed April 1 6, 1 8 9 5 To all whom it may concern.-

Be it known that I, GOTTFRIED GROSSMANN, engineer, a subject of the Kingof Prussia, residing at 12 Schutzenstrasse, Dortmund, in the GermanEmpire, have invented an Improved Machine for Gleanin g the ire-GauzeCylinders of Safety-Lamps, of which the following is 'a specification.

This invention relates to miners safety; lamps; and it consists in animproved machine for cleaning the wire-gauze cylinders of said lamps.

The safety of the workmen employed in mines and of the whole miningindustry depends, as far as explosions of fire-damp are concerned, in ahigh degree upon the perfect condition of the wire-gauze of thesafetylamps. The object of this invention is to facilitate the keepingof said wire-gauze cylinders in a perfect condition by cleaning thesecylinders, which are greatly exposed to dirt, by mechanical means in aquicker and more thorough manner, while saving the wiregauze, than ispossible by cleaning them by hand, as hitherto done, because in cleaningby hand they run very great risk of being crushed in, and the cleaning,although requiring a much longer time, is defective compared with thatwhich can be obtained by means of a machine.

On the drawings appended hereunto the improved cleaning-machine is shownin Figure I in sectional elevation and in Fig. II in,

plan.

The machine consists of a base-plate A with two pillars B G or theirequivalents screwed thereto, upon the upper end of which the top plate Dis fixed. This top plate and the pedestal E are formed with bearings foreccentrics, which are fitted upon the upper squared ends of the verticalspindles H and I, the position of the eccentrics being fixed by means ofthe slotted sectoral plates J and G, respectively, also fitted uponsquared ends of spindles and working in conjunction with the pins orstuds, as shown. Upon the spindles H and I two hollow shafts K and L arerespectively mounted loose on said spindles and fitted with feathers, bymeans of which they rotate the brushes M and N, the shafts being drivenby spur-wheels O and P, gearing with a central wheel S. The two spindlesH and I are Serial No- 545,916. (No model.)

arranged at different distances from the central spindle U, which issupported in a boss of the pedestal E and carries a rotary brush .T,over which the cylinder Q of the safetylamp to be cleaned is placed. Bymeans of the eccentrics at their ends the spindles H and J can beapproached nearer to the central spindle and cylinder as the brushes Mand N wear off, and when thisvno longer suffices the brush most worn isremoved and the other one placed upon the shaft L nearest to the centralspindle,while a new brush is placed upon the other shaft, K, which isfarther from the spindle, so that a complete using out of the brushes isrendered possible. The cylinder Q is fixed upon the boss of the wheel Sby being pressed upon an india-rubber washer siby means of an annularcap R, which is attached to the boss of wheel S by means of abayonet-lock or equivalent means. The wheel S is connected to abevel-wheel S rotated by means of another bevel-wheel, S on thehandle-shaft V, a second pair of bevels V (driven by the same shaft)rotating the spindle U with brush T when the'handle is turned. Thegearing may be arranged to rotate the cylinder Q and brush T in oppositedirections or in the same direction at different speeds, the brushes Mand N being rotated in the opposite directions to the cylinder Q.

The brushes M and N are fixed to flanges M and. N, respectively formedwith bosses having circular grooves into which the forked ends of atransverse bar WV enter. A flat brush Z is fixed to this bar and ahandle W, a pin X, put through the handle-shank, holding up the bar Wand brushes when in the position shown on the drawings. After fixing thecylinder Q over the brush T in the manner hereinbefore described thehandle I is turned by a quarter-turn so as to to bring the pin X intothe direction of the slot Y. 011 the handle being released the brushesZ, M, and N descend upon the cylinder Q, and with few turns of thehandle-shaft Vthe cylinder is perfectly cleaned, while deformation ofthe same cannot take place.

Obviously the details of the machine and gearing may be varied orreplaced by their mechanical equivalents. More than two lateral brushesmay be used.

Having thus described my invention, the

following is what I claim and desire to secure by Letters Patent:

1. In a machine for cleaning the wire-gauze cylinders of safety-lamps,the combination of suitable means for supporting the gauze cylindersagainst the action of the brushes, a brush adapted to operate inside ofthe cylinders, one or more brushes. adapted to act on the exteriorsurface of the gauze cylinders and suitable means for operating thebrushes, substantially as set forth.

2. In a machine for cleaning the wire-gauze cylinders of safety-lamps,the combination of a rotary brush over which the cylinder is adapted tobe placed, means for supporting the cylinder over the brush, one or morevertically-movable rotary brushes adapted to act upon the exteriorsurface of the cylinder, and means for operating the brushes,substantially as set forth.

3. In a machine for cleaning the wire-gauze cylinders of safety-lamps,the combination of a vertical rotary brush over which the cylinder isadapted to be placed, a rotating plate havin g means for fastening thecylinder thereon, a plurality of vertical rotary brushes adapted to acton the sides of the cylinder, a fiat brush adapted to act on the top ofthe same, and means for rotating said brushes and-cylinder in oppositedirections or at different circumferential speeds.

4:. In a machine for cleaning the wire-gauze cylinders of safety lampsby revolving brushes, the combination of a plurality of hollow shaftshaving rotary brushes for cleaning the outside of the cylinder andstationary spindles for said shafts placed at different distances fromthe wire cylinder and adjustable relatively thereto.

5. The combination of base-plate A, standards B, 13, top plate D,pedestal E, spindles H, I having adjusting-plates J, G, hollow shafts K,L, brushes M, N, Z, adjustable bar W, shaft U, brush T and suitabledriving mechanism, all constructed and adapted to operate substantiallyas set forth.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

' GOTTFRIED GROSSMANN.

\Vitnesses:

ERNESTINE ANDRE, WILLIAM .EssENwEIN.

